Browse Prior Art Database

Method for on-board LAN data included in a FWH via system BIOS

IP.com Disclosure Number: IPCOM000010569D
Publication Date: 2002-Dec-18
Document File: 2 page(s) / 66K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for on-board local area network (LAN) data included in a firmware hub (FWH) via system BIOS. Benefits include improved usability and improved design flexibility.

This text was extracted from a Microsoft Word document.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 90% of the total text.

Method for on-board LAN data included in a FWH via system BIOS

Disclosed is a method for on-board local area network (LAN) data included in a firmware hub (FWH) via system BIOS. Benefits include improved usability and improved design flexibility.

Description

              The disclosed method is an on-motherboard LAN. Its configuration/multiplier accumulator address that is conventionally stored on a dedicated electrically erasable programmable read-only memory (EEPROM) is stored in the FWH via system BIOS (see Figure 1).

              The main components of the disclosed method include:

•             Input/output (I/O) controller hub (ICH)

•             Firmware hub (FWH)

•             Physical layer device (PHY)

•             System BIOS

              The multiplier/accumulator (MAC) address is programmed into the FWH via a BIOS interface at the time of motherboard test.

              The LAN data is formatted as follows. Word 0B contains the PCI subsystem ID.  This field is dependent on the customer requirements. Word 23 contains the PCI device ID, which is specific to the ICH and LAN controller. Words 30 -32h are programmed by a boot agent at initialization based on the hardware/software configuration. The boot agent also recalculates the CHECKSUM. Any variances in these words from the base data file should be acceptable.

Advantages

              The disclosed method provides advantages, including:

•             Improved usability due to making changes using the system BIOS

•             Improved desig...